CN205533827U - Universal connection structure - Google Patents

Abstract

The utility model discloses an universal connection structure, including first semi -axis, second semi -axis and universal joint, first semi -axis is in the same place with the universal joint is articulated respectively with the second semi -axis, first connecting piece has the chassis, be in a pair of first fork ear of chassis one side, with a pair of second fork ear that is in the chassis opposite side, another quotation epirelief is equipped with the second fork ear of a pair of relative setting, the second connecting piece has the mounting panel, be in installation socket cap and the fork of a pair of third on another side ear in the mounting panel one side, the socket cap is rotatable installs on two first fork ears in the installation, the second socket cap and the first round pin axle of second semi -axis together stretch into to be installed on two thirds fork ear, the first socket cap of first semi -axis together stretches into with second round pin axle to be installed on two seconds fork ear. Compared with the prior art, it can directly pull down the change with the semi -axis alone, need not to dismantle whole semi -axis assembly get off, and it is simple and easy to change the operation to have the overall structure compactness, the dismouting is simple and easy, advantage that spare part is few.

Description

A kind of universal connection structure

Technical field

This utility model relates to a kind of vehicle drive axle, particularly to a kind of universal connection structure.

Background technology

The company of the vehicle drive axle semiaxis of existing various automobile, engineering truck, loader and special vehicle Connect assembly and can meet the driving during vehicle travels and the angle of direction turning, existing vehicle drive axle half Axle assembly, as it is shown in figure 1, its structure generally comprise that two-semiaxle is connected with for two-semiaxle universal Joint, this universal joint includes the first connection joint 101 and the hinged by half-connection axle 100 Two connect joint 102, have been respectively articulated with two outside the first connection joint 101 and the second connection joint 102 Semiaxis 200, the structure that the first connection joint 101 connects joint 102 with second is identical, and it is respectively provided with Two groups of axial lines are mutually perpendicular to, for wearing the perforation 1011,1012,1021,1022 connecting bearing pin, Half-connection axle 100 is provided with two axial lines and is mutually perpendicular to, for wearing the perforation connecting bearing pin 300 1001、1002.This kind of gimbal structure, the spacing between two because being oppositely arranged bore a hole is much smaller than even The length of pin axle 300, then one semiaxis 200 and the first connection being connected joint 101, second half It is all that semiaxis first stretches into connection joint that axle 200 is connected the mounting means that connects in joint 102 with second In a pair perforation, then reconnect bearing pin 300 and be sequentially inserted into perforation, partly along the axial line direction of perforation In axle and perforation, can be real in needle bearing 400 is contained in outside bearing pin 300 and is in perforation the most again The installation of existing semiaxis, when mounted in order to ensure the fastness that semiaxis is installed, then in the peace of bearing pin 300 Dress is general uses special hydraulic pressure bearing pin assembly machine to install, and when using the service life of semiaxis shorter, Need to often change, whole half axle assembly need to be disassembled, to hydraulic pressure patent when this just makes semiaxis change Changing with on assembly machine, or deliver to be replaced at production firm, replacement operation bothers, meanwhile, First connection joint is connected between joint with second to be needed to be attached by half connecting shaft, makes semiaxis total The installation become need to use four to connect bearing pins 300, the overall volume causing half axle assembly is big, it is loaded down with trivial details to dismount, The defects such as parts are many.

In view of this, drawbacks described above is furtherd investigate by the present inventor, then produces in this case.

Utility model content

The purpose of this utility model is to provide a kind of universal connection structure, and semiaxis can individually directly be torn open by it Lower replacing, it is not necessary to disassembled by whole half axle assembly, replacement operation is simple, and has overall structure Compact, dismounting is simple, the advantage that parts are few.

The technical solution of the utility model is such that a kind of universal connection structure, including the first semiaxis, Second semiaxis and universal joint, the first semiaxis and the second semiaxis are respectively together with universal joint articulated, and these are ten thousand years old The first connector being connected with the first semiaxis and the second connector of the second semiaxis connection is included to joint, One end that first semiaxis and the first connector are connected extends the first socket cap being provided with accumbency setting, this The central axis of the first socket cap and the axis of the first semiaxis are arranged in a mutually vertical manner, the second semiaxis and second One end that connector is connected extends the second socket cap being provided with accumbency setting, the center of the second socket cap The axis of axis and the second semiaxis is arranged in a mutually vertical manner；Above-mentioned first connector has chassis, the above-mentioned end It is convexly equipped with in the one card of dish in first fork ear, another card of pair of opposing and is convexly equipped with a pair The the second fork ear being oppositely arranged, two first fork ears offers the first perforation, two second fork ears is offered There are the second perforation, the line of centres of two first perforation and the two perpendicular settings of biperforate line of centres； Above-mentioned second connector has installing plate, in the one side of above-mentioned installing plate integrally formed with install socket cap, Another side is convexly equipped with the third fork ear of pair of opposing, and two third fork ears offer the 3rd perforation, The axis at above-mentioned installation socket cap longitudinal direction place and the perpendicular setting of the line of centres of two the 3rd perforation, and Arranged in parallel with two biperforate lines of centres, the axial two ends of above-mentioned installation socket cap can turn Dynamic is between two first fork ears, and end, the axial two ends correspondence respectively installing socket cap rotates peace Being loaded in two first perforation, the opposite that two third fork ears are relative is the first outward-dipping inclined plane, Two first inclined planes constitute by installing the socket cap loudspeaker moulding to third fork ear direction flaring, and two first The angle of inclination of inclined plane is 18-25 degree, above-mentioned second socket cap is provided with its end, two ends corresponding Passing the first bearing pin outside the second end, socket cap two ends, above-mentioned second socket cap and the first bearing pin are together Stretch between two third fork ears, and end, the two ends correspondence of the first bearing pin be in two the 3rd installation perforation, And be installed on two third fork ears by needle bearing rotation respectively；The opposite that two second fork ears are relative Being the second outward-dipping inclined plane, two second inclined planes are constituted by the first fork ear to the second fork ear side To the loudspeaker moulding of flaring, the angle of inclination of two second inclined planes is 18-25 degree, above-mentioned first cylinder Its end, two ends correspondence is installed on head and passes the second bearing pin outside the first end, socket cap two ends, above-mentioned First socket cap and the second bearing pin together stretch between two second fork ears, and the end, two ends of the second bearing pin Correspondence is in two second installation perforation, and is installed on two second fork ears by needle bearing rotation respectively On.

Above-mentioned chassis houses corresponding to installing the recessed part activity having for installing socket cap at socket cap In interior cavity, the outside at the position that the face, chamber of above-mentioned cavity and above-mentioned installation socket cap are in cavity Having spacing between wall, the face, chamber of this cavity is and installs the cambered surface that socket cap lateral surface matches, on The lateral surface stating installation socket cap is concavely provided with the groove extended along the circumferential direction installing socket cap.

With socket cap is installed the direction of axial line as above-below direction, socket cap is installed and is in installing plate Left side, third fork ear is in the right side of installing plate, and the first fork ear is in the right card on chassis, and two the One fork ear is in being oppositely arranged up and down, and the second fork ear is in the left card on chassis, and two second fork ears are front After be oppositely arranged, and two above-mentioned third fork ears be in install socket cap front and rear sides outside, above-mentioned peace The leading flank of dress plate is the inclined-plane that leans forward, and the trailing flank of above-mentioned installing plate is hypsokinesis inclined-plane, above-mentioned top rake Face and hypsokinesis inclined-plane constitute the loudspeaker moulding of flaring from left to right, and above-mentioned lean forward inclined-plane and above-mentioned hypsokinesis The angle on inclined-plane is 95-105 degree.

The edge, upper and lower both sides of above-mentioned installing plate right flank has each extended over and has been between two third fork ears also The reinforcement gusset linked together with two third fork ears；The both sides up and down of the left card in above-mentioned chassis are along respectively Extend and be provided with between the upsides being in two second fork ears and between the downsides of two second fork ears, and with two the The first gusset that y-bend ear links together and the second gusset.

The upper end face of above-mentioned first gusset and the most inclined top incline of upper end face of two second fork ears, The bottom surface of above-mentioned second gusset and the most inclined bottom incline of bottom surface of two second fork ears, above-mentioned Top incline and bottom incline constitute the loudspeaker moulding of flaring from left to right, and top incline and lower inclination The angle in face is 95-105 degree.

The front and rear sides of the right card in above-mentioned chassis is respectively equipped with the front side with two first fork ears along even along place The strengthening rib strip being connected together and link together with the two first rear side edges pitching ears, two strengthening rib strips are equal For the most recessed arc strip, the arc-shaped notch of two strengthening rib strips is oppositely arranged.

After using technique scheme, the connecting assembly of a kind of vehicle drive axle of the present utility model, by The opposite relative with two second fork ears in the opposite that two third fork ears are relative is outward-dipping inclining Inclined-plane, and the angle of inclination of inclined plane is 18-25 degree, so, utilizes this inclined plane to be used in semiaxis Install bearing pin can first and semiaxis assemble after again by tilted-putted mode together put into two fork ears it Between, needle bearing is finally installed and can realize the installation of semiaxis and fork ear, during dismounting one semiaxis, only Needle bearing need to be disassembled and semiaxis and bearing pin can be made together to disassemble from fork ear, it is not necessary to will Another semiaxis together disassembles together with universal joint changes or delivers to genuine replacing on hydraulic pressure special machine, Bring great convenience to the replacing of semiaxis, and simply, overcome the semiaxis generally existed individually to dismantle The technological deficiency got off；Meanwhile, the installation socket cap on the second connector is utilized can to realize the second connection The universal rotational of part, it is achieved that three universal rotationals, it is to avoid existing universal connection structure at most can only be real Show the technical problem of double universal rotationals, and installation socket cap is between two first fork ears, makes whole ten thousand The compactest to the integral structure layout of joint, reduce the overall volume of universal joint, and total is only Three bearing pins need to be used can to realize the connection of two-semiaxle and universal joint, and overall parts are few, and dismounting is relatively For simply.

Accompanying drawing explanation

Fig. 1 is the structural representation of half axle assembly of prior art；

Fig. 2 is structural representation of the present utility model；

Fig. 3 is the structural representation of another angle of this utility model；

Fig. 4 is the axonometric chart of the first connector in this utility model；

Fig. 5 is the axonometric chart of the second connector in this utility model.

Detailed description of the invention

A kind of universal connection structure of the present utility model, as shown in Figure 2-5, including the first semiaxis 1, the Two semiaxis 2 and universal joints, the first semiaxis 1 and the second semiaxis 2 respectively together with universal joint articulated, This universal joint include that the first connector 3 being connected with the first semiaxis 1 and the second semiaxis 2 connect the Two connectors 4, are in left side with the first semiaxis 1, and universal joint is in centre, and the second semiaxis 2 is in the right side Side, the central axis of the first semiaxis 1 and the second semiaxis 2 be left and right directions extended as a example by, first The right-hand member end of semiaxis 1 extends the first socket cap 11 being provided with accumbency setting, this first socket cap 11 The axis of central axis and the first semiaxis 1 is arranged in a mutually vertical manner, the central axis of the i.e. first socket cap 11 Direction is the most extended, and the left end end of the second semiaxis 2 extends be provided with that accumbency arranges the Two socket caps 21, the central axis of this second socket cap 21 and the axis of the second semiaxis 2 are mutually perpendicular to set Putting, the central axial direction of the i.e. second socket cap 21 is the most extended.

The first described connector 3 has chassis 31, and chassis 31 is erect and arranged, the right dish on chassis 31 Being convexly equipped with the first fork ear 32 of pair of opposing on face, two first fork ears 32 set in upper and lower relative spacing Putting, two first fork ears 32 offer the first perforation 321, two first perforation 321 are oppositely arranged, the The left side of one perforation 321 extends to, in the right card on chassis 32, the left card on chassis 32 be convexly equipped with Second fork ear 33 of pair of opposing, two second fork ears 33 offer the second perforation 331, and two the Two perforation 331 are oppositely arranged, in the line of centres of two first perforation 321 and two second perforation 331 The perpendicular setting of heart line, i.e. two second fork ears 33 in being front and back oppositely arranged, second perforation 331 the right side Side extends in the left card on chassis 32.

The second described connector 4 has installing plate 41, on the left surface of installing plate 41 integrally formed with Installation socket cap 42, installation socket cap 42 that accumbency is arranged are erect and are arranged, and i.e. install socket cap 42 Central axis is arranged along the vertical direction, install socket cap 42 rotating be in two first fork ears 32 it Between, and two ends up and down (the i.e. axially two ends) correspondence respectively installing socket cap 42 is rotatably installed in two the In one perforation 321, particularly, install to offer on socket cap 42 and run through on installation socket cap 42 The perforation at lower two ends, setting-in mounting pin axle 5 in this perforation, and end, the two ends correspondence installing bearing pin 5 are stretched Going out to install outside the end, two ends of socket cap 42, end, the two ends correspondence of installation bearing pin 5 is in two first and wears In hole 321, and outside the end, two ends of installation bearing pin 5, the needle roller being in the first perforation 321 is installed Bearing (is not drawn in figure), and this needle bearing and the first fork ear 32 secure fit are arranged, i.e. mounting pin Axle 5 can rotate around needle bearing, and the rotation i.e. realizing installing socket cap 42 is installed.

The right flank of described installing plate 41 is convexly equipped with the third fork ear 43 of pair of opposing, two third forks Offering the 3rd perforation 431 on ear 43, two the 3rd perforation 431 are oppositely arranged, two the 3rd perforation 431 The line of centres be arranged in a mutually vertical manner with the central axis installing socket cap 42, and biperforate with two the The line of centres is arranged in parallel, i.e. two third fork ears 43 in being front and back oppositely arranged, two third fork ears 43 Relative opposite is the first outward-dipping inclined plane 432, and two first inclined planes 432 are constituted by a left side To the loudspeaker moulding of right direction flaring, and the angle of inclination of two first inclined planes 432 is 18-25 degree, The optimum tilt angle of the first inclined plane 432 is 24 degree, and this angle of inclination refers to the first inclined plane and the The angle between central axis on two connector 4 left and right directions, the two ends of the second socket cap 21 rotate It is arranged on two third fork ears 43, its end, two ends correspondence is installed in the i.e. second socket cap 21 and stretches out second The first bearing pin 6 outside the axial end, two ends of socket cap 21, this second socket cap 21 and first bearing pin 6 one With tilting to stretch between two third fork ears 43, and end, the two ends correspondence of the first bearing pin 6 is in two the 3rd Install in perforation 431, and be installed on two the 3rd by the rotation of needle bearing (not shown) respectively On fork ear 43, i.e. needle bearing and the first bearing pin 6 is rotatably assorted, needle bearing and third fork ear 43 Secure fit；And, the edge, side, upside of installing plate 41 and side, downside are in two the along being extended with the most to the right Between three fork ear 43, and the reinforcement gusset 411 being connected together with two third fork ears 43, two strengthen Gusset 411 correspondence is in the upside of two third fork ears 43 along between left part and two third fork ear 43 times Side is along between left part.

The two second fork relative opposites of ears 33 are the second outward-dipping inclined plane 332, and two second Inclined plane 332 is constituted by the first fork ear 32 to the second fork ear 33 direction (direction the most from right to left) gradually The loudspeaker moulding expanded, the angle of inclination of two second inclined planes 332 is 18-25 degree, the second inclined plane Optimum tilt angle is 20 degree, and this angle of inclination refers to the second inclined plane and the first connector 3 right and left The angle between central axis upwards, the two ends of the first socket cap 11 are rotatably installed in two second fork ears On 33, being provided with its end, two ends correspondence in the i.e. first socket cap 11, to stretch out the first socket cap 11 axial The second bearing pin 7 outside end, two ends, this first socket cap 11 and the second bearing pin 7 together tilt to stretch into two Between second fork ear 33, and end, the two ends correspondence of two second bearing pins 7 is in two second installation perforation 331 In, and be installed on two second fork ears 33 by the rotation of needle bearing (not shown) respectively, i.e. Needle bearing and the second bearing pin 7 are rotatably assorted, needle bearing and the second fork ear 33 secure fit；And, The edge, upside of the left card in chassis 31 is convexly equipped with and is between two second fork ears 33, and pitches ear 33 with second The first gusset 333 linked together, the edge, downside of the left card in chassis 31 is convexly equipped with and is in two second forks Right part between ear 33, and the second gusset 334 linked together with the second fork ear 33, the i.e. first side Enclose 333 be in one second pitch the upside right part of ear 33 and another the second fork ear 33 upside right part it Between, the second gusset 334 is in one second and pitches downside right part and another the second fork ear 33 of ear 33 Between the right part of downside.

The connecting assembly of a kind of vehicle drive axle of the present utility model, has the advantages that

One, pitch, due to two second, the opposite that the relative opposite of ears 33 is relative with two third fork ears 43 All in outward-dipping inclined plane, and the angle of inclination of inclined plane is 18-25 degree, so, is keeping Increase in the case of the length of original semiaxis socket cap and bearing pin between two second fork ears 33 with two the 3rd Spacing is stretched into, first by the first bearing pin when enabling the first semiaxis 1 and the second semiaxis 2 between fork ear 43 6 and second bearing pin 7 correspondence be initially charged with in the first socket cap 11 and the second socket cap 21, pass through the most again The mode of lopsidedness is together put between two fork ears, is arranged on by needle bearing on fork ear i.e. the most again The first semiaxis or the installation of the second semiaxis can be realized；If one semiaxis need to be dismantled, only need to be by this semiaxis Two corresponding needle bearings disassemble can make the first semiaxis and the second bearing pin or the second semiaxis and First bearing pin together disassembles from two second fork ears or on two third fork ears, it is not necessary to by another semiaxis Together disassemble to hydraulic pressure special machine replacing together with universal joint or deliver to genuine replacing, to semiaxis Replacing bring great convenience, the replacement operation making semiaxis is simple, overcomes the existing semiaxis generally existed Cannot technological deficiency that directly individually split disassembles with universal joint；Simultaneously by strengthen gusset, the One gusset and the second gusset can make up and cause, because the spacing of two fork ears becomes big, the defect that intensity is low, thus Ensure that the bulk strength of the first connector and the second connector will not decline and strengthen；Separately, the first bearing pin 6 Install outside universal joint with the second bearing pin 7, the first bearing pin and the installation of the second semiaxis and the second pin can be made The installation of axle and the first semiaxis is the most firm, convenient, fast；

Two, the installation socket cap 42 on the second connector 4 is utilized can to realize the universal of the second connector 4 Rotate and install, it is achieved that in addition to the universal rotational of the first semiaxis and the second semiaxis, also add second The universal rotational of connector, it is achieved that three universal rotationals, it is to avoid existing universal connection structure is the most only The technical problem of double universal rotational can be realized；

Three, socket cap 42 is installed be between two first fork ears 32, makes the overall knot of whole universal joint Structure layout is the compactest, reduces the overall volume of universal joint, and total only need to use three pins Axle can realize the connection of two-semiaxle and universal joint, and overall parts are few, dismount the simplest.

In this utility model, this chassis 31 has for installing cylinder corresponding to recessed at installation socket cap 42 The part of 42 is movably placed in interior cavity 311, the face, chamber of cavity 311 with socket cap is installed 42 are in cavity 311 and have spacing between the lateral wall at position, and the face, chamber of this cavity 31 is and installation The cambered surface that socket cap 42 lateral surface matches, utilize this cavity 311 1 aspect can make the first connector with Overall volume after second connector connects is less, on the other hand can make the rotation of installation socket cap 42 relatively For smooth and easy；Meanwhile, the lateral surface of this installation socket cap 42 was concavely provided with along the week installing socket cap 42 The groove 421 extended to direction, utilizes this groove 421 to make installation socket cap 42 in cavity 311 Rotate more smoothly.

In this utility model, two third fork ears 43 are in outside the front and rear sides installing socket cap 42, The leading flank of installing plate 41 is to be inclined by the direction installing the socket cap 4 third fork ear 43 on front side of being in The oblique inclined-plane 412 that leans forward, the trailing flank of installing plate 41 is by installing socket cap 42 to being in the of rear side The hypsokinesis inclined-plane 413 that the direction of three fork ear 43 tilts, i.e. lean forward inclined-plane 412 and hypsokinesis inclined-plane 413 structure Becoming the loudspeaker moulding of flaring from left to right, the angle on lean forward inclined-plane 412 and hypsokinesis inclined-plane 413 is 95-105 Degree, utilizes forward and backward inclined plane can increase the universal rotational angle of the second connector 4 by most preferably 100 degree Degree.

In this utility model, the upper end face of the first gusset 333 and two second fork ears 33 upper end face all in The top incline tilted, the bottom surface of the bottom surface of the second gusset 334 and two second fork ears is the most inclined Bottom incline, top incline and bottom incline constitute the loudspeaker moulding of flaring from left to right, and updip The angle of inclined-plane and bottom incline is 95-105 degree, most preferably 100 degree, utilizes this first gusset and the The inclined plane of two gussets arranges and the setting of gusset can will not be made to increase under the intensity ensureing the first connector The overall volume of big first connector.

In this utility model, first can be used about the mounting means installing socket cap and two first fork ears Socket cap and second pitches the mounting means of ear and the second cylinder and third fork ear, and i.e. two first fork ears are relative Opposite equally in outward-dipping inclined plane；May be used without traditional mounting means, do not change The shape of the first fork ear, first stretches into installation socket cap between two first fork ears, then will install bearing pin 5 Install；Because the turnover rate of the second connector is relatively low, then to installing socket cap and the peace of the first fork ear Dress mode is unrestricted.

In this utility model, along the front side being positioned at two first fork ears 32 on front side of the right card on this chassis 31 It is provided with along all solid weldings between the rear side left parts at two first fork ears 32 between left part and on rear side of right card Strengthening rib strip 34, two strengthening rib strips 34 are the most recessed arc strip, and the arc of two strengthening rib strips 34 Shape recess is oppositely arranged, and the arc-shaped notch of the strengthening rib strip being i.e. in front side is arranged backwards, is in rear side The arc-shaped notch of strengthening rib strip arrange forward, so, dispersion can be played by two strengthening rib strips 34 The stress of two first fork ears 32, makes the first fork ear 32 be difficult to impaired, and utilizes the arc of strengthening rib strip 34 Shape characteristic makes the first connector not interfere with the angle of rotation of the second connector in the case of increasing intensity Degree.

Above-described embodiment and graphic and non-limiting product form of the present utility model and style, any belonging to The those of ordinary skill of technical field is suitably changed what it did or modifies, and all should be regarded as without departing from this The patent category of utility model.

Claims (6)

1. a universal connection structure, including the first semiaxis, the second semiaxis and universal joint, the first semiaxis With the second semiaxis respectively together with universal joint articulated, this universal joint includes and is connected with the first semiaxis The second connector that first connector and the second semiaxis connect, the first semiaxis and the first connector are connected One end extend be provided with accumbency arrange the first socket cap, the central axis of this first socket cap and first The axis of semiaxis is arranged in a mutually vertical manner, and one end extension that the second semiaxis and the second connector are connected is provided with The second socket cap that accumbency is arranged, the central axis of the second socket cap and the axis of the second semiaxis are the most vertical Straight setting；It is characterized in that: above-mentioned first connector has chassis, in the one card on above-mentioned chassis It is convexly equipped with in first fork ear, another card of pair of opposing and is convexly equipped with the second of pair of opposing Fork ear, two first fork ears offer the first perforation, and two second fork ears offer the second perforation, and two The line of centres of the first perforation and the two perpendicular settings of biperforate line of centres；Above-mentioned second connects Part has installing plate, integrally formed with installing socket cap, another side projection in the one side of above-mentioned installing plate There is the third fork ear of pair of opposing, two third fork ears offer the 3rd perforation, above-mentioned installation circle The axis at stigma longitudinal direction place and the perpendicular setting of the line of centres of two the 3rd perforation, and wear with two second The line of centres in hole is arranged in parallel, and the axial two ends of above-mentioned installation socket cap are rotating is in two Between first fork ear, and end, axial two ends corresponding rotation the respectively installing socket cap is installed on two first In perforation, the opposite that two third fork ears are relative is the first outward-dipping inclined plane, and two first incline Inclined-plane constitutes by installing the socket cap loudspeaker moulding to third fork ear direction flaring, two first inclined planes Angle of inclination is 18-25 degree, above-mentioned second socket cap is provided with its end, two ends correspondence and passes second The first bearing pin outside end, socket cap two ends, above-mentioned second socket cap and the first bearing pin together stretch into two Between three fork ear, and end, the two ends correspondence of the first bearing pin is in two the 3rd installation perforation, and respectively Rotated by needle bearing and be installed on two third fork ears；The two second fork relative opposites of ears be to Second inclined plane of outer incline, two second inclined planes are constituted by the first fork ear to the second fork ear direction flaring Loudspeaker moulding, the angle of inclination of two second inclined planes is 18-25 degree, on above-mentioned first socket cap pacify The second bearing pin outside the first end, socket cap two ends, above-mentioned first circle is passed equipped with its end, two ends correspondence Stigma and the second bearing pin together stretch between two second fork ears, and the corresponding position, end, two ends of the second bearing pin Install in perforation in two second, and be installed on two second fork ears by needle bearing rotation respectively.

A kind of universal connection structure the most according to claim 1, it is characterised in that: above-mentioned chassis It is movably placed in interior cavity corresponding to installing the recessed part having for installation socket cap at socket cap, Between having between the lateral wall at the position that the face, chamber of above-mentioned cavity and above-mentioned installation socket cap are in cavity Away from, the face, chamber of this cavity is and installs the cambered surface that socket cap lateral surface matches, above-mentioned installation socket cap Lateral surface be concavely provided with along install socket cap circumferential direction extend groove.

A kind of universal connection structure the most according to claim 1, it is characterised in that: to install circle The direction of the axial line of stigma is above-below direction, installs socket cap and is in the left side of installing plate, third fork Ear is in the right side of installing plate, and the first fork ear is in the right card on chassis, and two first fork ears are in up and down Be oppositely arranged, second fork ear is in the left card on chassis, two second fork ears in being front and back oppositely arranged, And two above-mentioned third fork ear be in install socket cap front and rear sides outside, the leading flank of above-mentioned installing plate For the inclined-plane that leans forward, the trailing flank of above-mentioned installing plate is hypsokinesis inclined-plane, above-mentioned inclined-plane and the hypsokinesis inclined-plane of leaning forward Constitute the loudspeaker moulding of flaring from left to right, and the angle on above-mentioned lean forward inclined-plane and above-mentioned hypsokinesis inclined-plane is 95-105 degree.

A kind of universal connection structure the most according to claim 3, it is characterised in that: above-mentioned installation The upper and lower both sides of plate right flank along each extended over be between two third fork ears and with two third fork ears The reinforcement gusset linked together；The edge, both sides up and down of the left card in above-mentioned chassis each extends over to be provided with and is in Between the upside of two second fork ears and between the downside of two second fork ears, and it is connected to two second fork ears The first gusset together and the second gusset.

A kind of universal connection structure the most according to claim 4, it is characterised in that: above-mentioned first The upper end face of gusset and the most inclined top incline of upper end face of two second fork ears, above-mentioned second gusset Bottom surface and the most inclined bottom incline of bottom surface of two second fork ears, above-mentioned top incline with under Inclined plane constitutes the loudspeaker moulding of flaring from left to right, and the angle of top incline and bottom incline is 95-105 degree.

A kind of universal connection structure the most according to claim 3, it is characterised in that: above-mentioned chassis The front and rear sides of right card be respectively equipped with along place with two first fork ears front side along link together and with The rear side of two first fork ears is along the strengthening rib strip linked together, and two strengthening rib strips are the most recessed arc Shape bar, the arc-shaped notch of two strengthening rib strips is oppositely arranged.